1 Answer
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You're trying to use the rpm-based installer on a non-rpm-based system.

Ubuntu includes the JRE in it's repositories (if I remember correctly, haven't used it for a while). Something like apt-get install sun-java6-jre if I remember correctly.

Alternatively, there should be a second bin file on the download page without rpm in the name. That's just a self-extracting archive that will create a folder containing the jre files. It won't set up the path or anything though.